<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>v-on基础</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>
<body>
    <div id="app">
        <input type="button" value="v-on指令" v-on:click="doIt">
        <input type="button" value="v-on简写" @click="doIt">
        <input type="button" value="双击我" @dblclick="doIt">
        <!-- 指令简写为@ -->
        <h2 @click="changeFood">{{food}}</h2>
    </div>

    <script>
        var app = new Vue({
            el:"#app",
            data:{
                food:"西兰花🥦"
            },
            methods:{
                doIt:function(){
                    // 点击逻辑
                    alert("click me");
                },
                changeFood:function(){
                    // console.log(this.food)
                    this.food += "好难吃！";
                }
                
            },
        })
    </script>
    
</body>
</html>